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Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Operations |  |
Net income | $ 85.8 | $ 63.3
Less: Income (loss) from discontinued operations | (3.9) | (11.0)
Income from Continuing Operations | 89.7 | 74.3
Non-cash items included in net income: |  |
Depreciation and amortization | 27.0 | 28.7
Impairment | 0 | 20.0
Deferred income tax provision (benefit) | 12.8 | 8.6
Pension and other postretirement benefits | 3.4 | 1.6
Stock-based compensation | 2.0 | 4.5
Income from equity affiliates | 0.5 | 0.8
Excess tax benefits of stock-based awards | (0.5) | (0.1)
Other items | 2.3 | (1.2)
Changes in operating working capital |  |
Accounts receivable | (6.9) | 3.8
Inventories | (0.4) | (7.4)
Prepaid expenses | 0.1 | (0.3)
Accounts payable | (6.7) | (3.7)
Accrued expenses | 3.4 | (3.8)
Accrued incomes taxes | (5.5) | 2.4
Net changes in operating working capital | (16.0) | (9.0)
Net cash provided (used) by operating activities of: |  |
- Continuing operations | 121.2 | 128.2
- Discontinued operations | 1.9 | (2.8)
Cash Provided by Operations | 123.1 | 125.4
Investing |  |
Capital spending | (20.2) | (20.4)
Capitalized software costs | (0.4) | (0.5)
Investment in equity affiliates, net | 0 | (21.0)
Other investing | 0.5 | (4.1)
Cash Used for Investing | (20.1) | (46.0)
Financing |  |
Cash dividends paid to SWM stockholders | (28.3) | (9.4)
Changes in short-term debt | 0.4 | 1.3
Proceeds from issuances of long-term debt | 53.4 | 39.8
Payments on long-term debt | (59.5) | (20.3)
Purchases of treasury stock | (1.7) | (50.0)
Proceeds from exercise of stock options | 0.3 | 0.1
Excess tax benefits of stock-based awards | 0.5 | 0.1
Cash Used in Financing | (34.9) | (38.4)
Effect of Exchange Rate Changes on Cash and Cash Equivalents | 3.2 | 0.3
Increase (Decrease) in Cash and Cash Equivalents | 71.3 | 41.3
Cash and Cash Equivalents at beginning of period | 151.2 | 76.5
Cash and Cash Equivalents at end of period | $ 222.5 | $ 117.8

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration